You don't choose the team you love... The team chooses you.
Everyone has different reasons for being a Phin fan... Father, brother loving the team before them... Living locally... great stories of meeting players... Identification with/Affinity for said players... Hell some might love them because they have an orange stripe on their pants. etc etc etc... It's personal to each and every one.
Maybe if you took the time to remember why you started to love the team in the first place (for 38 freaking years) you would not be so quick to leave them. I can't remember anyone telling me they woke up one day and said 'Today I will become a Dolphins fan'... Well actually yes I do but they were women.

If you ever had passion for the sport or the team you would never give up on them.
Remember... It's surviving the absolute Sh** times that make the good times that much sweeter... How much fun are they having in Detroit right now?
I suggest everyone take a date and time stamped pic of yourself in a Phins jersey right now... Just so you don't get accused of being a band wagoner when the time comes...